jackknife

jackknife
jackknife [jak′nīf΄ ]
n.
pl. jackknives [jak′nīvz΄] [ JACK- + KNIFE]
1. a large pocketknife
2. a dive in which the diver keeps his knees unbent, touches his feet with his hands, and then straightens out just before plunging into the water
vt.
jackknifed, jackknifing
1. to cut with a jackknife
2. to cause to jackknife
vi.
1. to bend at the middle as in a jackknife dive
2. to turn on the hitch so as to form a sharp angle with each other: said of a vehicle and its trailer

English World dictionary. . 2014.

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  • Jackknife — ist die englische Bezeichnung für ein Klappmesser. Davon abgeleitet bezeichnet es: Jackknife (Statistik), in der Statistik eine Methode des Resampling eine Variation der Wrestling Technik Powerbomb eine Variation der Kampfsport Technik 540 Kick… …   Deutsch Wikipedia

  • jackknife — ► NOUN (pl. jackknives) 1) a large knife with a folding blade. 2) a dive in which the body is bent at the waist and then straightened. ► VERB (jackknifed, jackknifing) 1) move (one s body) into a bent or doubled up position. 2) …   English terms dictionary

  • Jackknife — Jack knife , n. A large, strong clasp knife for the pocket; a pocket knife. [1913 Webster] …   The Collaborative International Dictionary of English

  • Jackknife — En statistiques, le jackknife ((en) couteau suisse) est une méthode de rééchantillonnage qui tire son nom de couteau suisse du fait qu elle peut être utile à diverses choses : réduction du biais en petit échantillon, construction d un… …   Wikipédia en Français

  • jackknife — /jak nuyf /, n., pl. jackknives, v., jackknifed, jackknifing, adj. n. 1. a large pocketknife. 2. Fancy Diving. a dive in which the diver bends in midair to touch the toes, keeping the legs straight, and then straightens out. v.i. 3. to bend or… …   Universalium

  • jackknife — I UK [ˈdʒækˌnaɪf] / US noun [countable] Word forms jackknife : singular jackknife plural jackknives UK [ˈdʒækˌnaɪvz] / US 1) a small knife with a blade that folds into its handle 2) a dive in which you jump high, touch your toes, and then stretch …   English dictionary

  • jackknife — jack•knife [[t]ˈdʒækˌnaɪf[/t]] n. pl. knives, 1) a large pocketknife 2) spo a dive in which the diver bends in midair to touch the toes, keeping the legs straight, and then straightens out 3) cvb to bend over from or at the middle; double over… …   From formal English to slang

  • jackknife — I. noun Date: 1711 1. a large strong pocketknife 2. a dive executed headfirst in which the diver bends from the waist and touches the ankles while holding the knees unbent and then straightens out II. verb Date: 1806 transitive verb 1. to cut… …   New Collegiate Dictionary

  • jackknife — /ˈdʒæknaɪf / (say jaknuyf) noun (plural jackknives) 1. a large knife with a blade that folds into the handle. 2. → jackknife dive. –verb (i) (jackknifed, jackknifing) 3. to bend or fold up, like a jackknife. 4. (of a horse) to buck bringing all… …  

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